Home / 692,292.52-955,408.26-390,480.04

Finding the Fourth Proportional to 692,292.52, 955,408.26 and 390,480.04

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Solution

The fourth proportional to 692,292.52, 955,408.26 and 390,480.04 is: 538,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,292.52 : 955,408.26 = 390,480.04 : x
  2. Step 2: Convert to fraction form
    692,292.52/955,408.26 = 390,480.04/x
  3. Step 3: Cross multiply
    692,292.52x = 955,408.26 × 390,480.04
  4. Step 4: Simplify right side
    692,292.52x = 373,067,855,581.13
  5. Step 5: Solve for x
    x = 373,067,855,581.13/692,292.52
  6. Step 6: Final answer
    x = 538,887.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.